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UefiCpuPkg/PiSmmCpuDxeSmm: Avoid BspIndex typecasting 

Use MAX_UINT32 directly instead of typecasting from signed
to unsigned value.

Cc: Ray Ni <ray.ni@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Zeng Star <star.zeng@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Cc: Kinney Michael D <michael.d.kinney@intel.com>
Signed-off-by: Jiaxin Wu <jiaxin.wu@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
This commit is contained in:
Jiaxin Wu 2024-02-06 15:49:00 +08:00 committed by mergify[bot]
parent edc6681206
commit d698bcfe4f
1 changed files with 6 additions and 6 deletions
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12
UefiCpuPkg/PiSmmCpuDxeSmm/MpService.c
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@ -696,10 +696,10 @@ BSPHandler (
ResetTokens ();
//
// Reset BspIndex to -1, meaning BSP has not been elected.
// Reset BspIndex to MAX_UINT32, meaning BSP has not been elected.
//
if (FeaturePcdGet (PcdCpuSmmEnableBspElection)) {
mSmmMpSyncData->BspIndex = (UINT32)-1;
mSmmMpSyncData->BspIndex = MAX_UINT32;
}
//
@ -747,7 +747,7 @@ APHandler (
//
// BSP timeout in the first round
//
if (mSmmMpSyncData->BspIndex != -1) {
if (mSmmMpSyncData->BspIndex != MAX_UINT32) {
//
// BSP Index is known
// Existing AP is in SMI now but BSP not in, so, try bring BSP in SMM.
@ -1656,7 +1656,7 @@ SmiRendezvous (
//
InterlockedCompareExchange32 (
(UINT32 *)&mSmmMpSyncData->BspIndex,
(UINT32)-1,
MAX_UINT32,
(UINT32)CpuIndex
);
}
@ -1854,9 +1854,9 @@ InitializeMpSyncData (
mSmmMpSyncData->CandidateBsp = (BOOLEAN *)(mSmmMpSyncData->CpuData + gSmmCpuPrivate->SmmCoreEntryContext.NumberOfCpus);
if (FeaturePcdGet (PcdCpuSmmEnableBspElection)) {
//
// Enable BSP election by setting BspIndex to -1
// Enable BSP election by setting BspIndex to MAX_UINT32
//
mSmmMpSyncData->BspIndex = (UINT32)-1;
mSmmMpSyncData->BspIndex = MAX_UINT32;
} else {
//
// Use NonSMM BSP as SMM BSP